First Click Get Access Token & Open In New Tab
Then Allow the Application
You will get a URL something like this
https://www.facebook.com/#access_token=AAAAgwGsBAEdZClNlS5fgAUw3dVsb3SxBglNwFSDz3R7ZBjbb7E0phC49DjyN7JyrNVE4dIZAZB7&expires_in=0
Your Access Token Will Be Like The Red Color Above